Enum AnalysisIndex 

pub enum AnalysisIndex {
    Tempo,
    Zcr,
    MeanSpectralCentroid,
    StdDeviationSpectralCentroid,
    MeanSpectralRolloff,
    StdDeviationSpectralRolloff,
    MeanSpectralFlatness,
    StdDeviationSpectralFlatness,
    MeanLoudness,
    StdDeviationLoudness,
    Chroma1,
    Chroma2,
    Chroma3,
    Chroma4,
    Chroma5,
    Chroma6,
    Chroma7,
    Chroma8,
    Chroma9,
    Chroma10,
    Chroma11,
    Chroma12,
    Chroma13,
}

Indexes different fields of an Analysis.

• Example:

use bliss_audio::{AnalysisIndex, BlissResult, Song};

fn main() -> BlissResult<()> {
    // Should be an actual track loaded with a Decoder, but using an empty
    // song for simplicity's sake
    let song = Song::default();
    println!("{}", song.analysis[AnalysisIndex::Tempo]);
    Ok(())
}

Prints the tempo value of an analysis.

Note that this should mostly be used for debugging / distance metric customization purposes.

Variants

Tempo

The song’s tempo.

Zcr

The song’s zero-crossing rate.

MeanSpectralCentroid

The mean of the song’s spectral centroid.

StdDeviationSpectralCentroid

The standard deviation of the song’s spectral centroid.

MeanSpectralRolloff

The mean of the song’s spectral rolloff.

StdDeviationSpectralRolloff

The standard deviation of the song’s spectral rolloff.

MeanSpectralFlatness

The mean of the song’s spectral flatness.

StdDeviationSpectralFlatness

The standard deviation of the song’s spectral flatness.

MeanLoudness

The mean of the song’s loudness.

StdDeviationLoudness

The standard deviation of the song’s loudness.

Chroma1

The proportion of pitch class set 1 (IC1) compared to the 6 other pitch class sets, per this paper https://speech.di.uoa.gr/ICMC-SMC-2014/images/VOL_2/1461.pdf

Chroma2

The proportion of pitch class set 2 (IC2) compared to the 6 other pitch class sets, per this paper https://speech.di.uoa.gr/ICMC-SMC-2014/images/VOL_2/1461.pdf

Chroma3

The proportion of pitch class set 3 (IC3) compared to the 6 other pitch class sets, per this paper https://speech.di.uoa.gr/ICMC-SMC-2014/images/VOL_2/1461.pdf

Chroma4

The proportion of pitch class set 4 (IC4) compared to the 6 other pitch class sets, per this paper https://speech.di.uoa.gr/ICMC-SMC-2014/images/VOL_2/1461.pdf

Chroma5

The proportion of pitch class set 5 (IC5) compared to the 6 other pitch class sets, per this paper https://speech.di.uoa.gr/ICMC-SMC-2014/images/VOL_2/1461.pdf

Chroma6

The proportion of pitch class set 6 (IC6) compared to the 6 other pitch class sets, per this paper https://speech.di.uoa.gr/ICMC-SMC-2014/images/VOL_2/1461.pdf

Chroma7

The proportion of major triads in the song, compared to the other triads.

Chroma8

The proportion of minor triads in the song, compared to the other triads.

Chroma9

The proportion of diminished triads in the song, compared to the other triads.

Chroma10

The proportion of augmented triads in the song, compared to the other triads.

Chroma11

The L2-norm of the IC1-6 (see above).

Chroma12

The L2-norm of the IC7-10 (see above).

Chroma13

The ratio of the L2-norm of IC7-10 and IC1-6 (proportion of triads vs dyads).

Implementations

impl AnalysisIndex

pub const FEATURES_VERSION: FeaturesVersion = FeaturesVersion::LATEST

The features version associated with this analysis index.

Trait Implementations

impl Debug for AnalysisIndex

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl EnumCount for AnalysisIndex

const COUNT: usize = 23usize

impl Index<AnalysisIndex> for Analysis

type Output = f32

The returned type after indexing.

fn index(&self, index: AnalysisIndex) -> &f32

Performs the indexing (container[index]) operation.

impl IntoEnumIterator for AnalysisIndex

type Iterator = AnalysisIndexIter

fn iter() -> AnalysisIndexIter